Question

What kind of molecular orbital for a diatomic molecule is represented by the drawing shown? Select one: a. op ob. 02p C. Tt2p O d. tip e. 02 Which of the following molecules has bonding that can be described as an sp2-sp? o-overlap and one p-p 1-overlap using Valence Bond Theory? Do not consider bonds to hydrogen. Select one: a. N2 b. HCCH c. H2CCH2 d. Bez e. CO

Answer 1

stul to remember: Representing the blue region as shaded, we have 1. The ohdital has centre of inversion. 1 The following is helpful - T* and I are always changing sign / colour on opposite sides of centre of inversion. T and 7* have same colour on opposite sides of the centre [The alone in valid only resultant orbitals if the have a centre]. For this orbital: del For this orbital: - Centre. Centre . from As we move in opposite direction centme, the colour doesn't change. So, it i either T or T* A2p by A Tap onbetal is formed by direct overlap, tarenal overlap. * Coverlop in ophose) 1 Асил, да Cout of phase overlap) и те 3

11 12 25 - 2s L24 2p For e, in spe hybridisation: D 50 - 5 Cunny Iridized) ( 25² 26²) 3 spa : and p: h] So, bond formation in. 1 CH2 - CH2 for a ú as: a l spa orbital, having 1 electron. 22 * -p onbital, having one electron. Hence, cac bond has a sp²-spe or overlap and one p- p t overlap. Bonding in the others are as: NEN! : N( is? 28 2p) Til 7 H11 2s 2p. The three elections in 2p form triple bond. (One Tap and N love pair ü in 2s.

il hlil 1 11/12 (1825²26²): Is ZP b. HC = CH 25 20 - 2s 2p Įsp hybridisation, 2 Sp: IT and a ap: 11 CLI Sp orbital with q elechon s orbital with I electron e Ec bond has 1 sp.spa bond, 2 2p to bonds -2p. d. Bez: Be (15 25²): 1121 Il 25 ap. . 2s 2p 1 tsp. 1 (Bez does not form). 2 $p:19 ] co ; e - 2 love One pairs in sp. sp r sp oubitals. a n bonds.